﻿using System.Collections.Generic;

namespace UserManagementSystem
{
    public interface IUserService
    {
        bool Register(string username, string password, string email);
        
        bool Login(string username, string password);
        
        bool IsUsernameExists(string username);
        
        List<User> GetAllUsers();
        
        void ShowMainMenu();
        
        void RegisterProcess();
        void LoginProcess();
    }
}